Coulters | Harrows

Robust und präzise (1) Schlepp-Schar

WS suffolk coulter

The robust and precise, plough-based coulter for the Cataya Special

The WS Suffolk coulter is particularly well-suited to seeding after the plough or if there is only a little straw, for example, after harvesting oil seed rape or turnips. The cast material in the coulter point has an exceptionally long service life. Worn coulter points can be replaced by releasing just a single screw in the case of large-scale operations with particularly aggressive soils.

The 3-row layout and the large coulter stagger prevent blockages in the coulter area. A funnel in the coulter guides the seed precisely behind the coulter tip. The back-up flap prevents the coulter outlet from being blocked when the machine is set down.


1. Back-up flap
2. Hard cast tip

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Sabre coulter tip

The sabre coulter tip was developed for very shallow seed placement on light soils or for mulch sowing with an average amount of prevailing straw. It can be replaced with the WS tip with very little effort.

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Band sowing shoes

Band sowing shoes are easy to attach and allow the seed to be divided into strips as well as helping to reduce the placement depth.

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RoTeC-Control-Schar (Cataya)

RoTeC Control coulter – The universally-usable single disc coulter

Goes right up to the limit of practical operation and placement: RoTeC Control coulters are maintenance-free and work extremely well yet with little wear and tear. Even where large amounts of straw and trash prevail they won’t block up. The combination of the sowing disc on the one side and the furrow former on the other create the perfect seed furrow and optimum seed control. The elastic polyurethane disc also helps to create the seed furrow, accurately controls the pre-set sowing depth and prevents soil from sticking to the sowing discs.


Quality and reliability throughout:

  • Coulter discs made from high grade Boron steel for an even more prolonged service life 
  • Wear-resistant and self-cleaning Control 10 depth guidance discs and Control 25 depth guidance rollers for the exact adjustment of the placement depth 
  • Decoupling coulter guidance and reconsolidation for a smoother coulter run and a universal response to the weather conditions


The maintenance-free RoTeC Control single disc coulters

1. Precise depth adjustment from 1 cm to 6 cm.
2. Reinforced support arm with a coulter pressure of up to 35 kg. Central coulter pressure adjustment.
3. “Control" 25 mm or 10 mm depth control and cleaning roller for an even planting depth.
4. Furrow former for a clean profile seed furrow.
5. Seed guide tube up to the furrow former for even seed placement.
6. Sowing disc ∅ 320 mm made of boron steel, working angle of 7°, for smooth operation of the coulter.
7. Exact harrow for excellent seed coverage.

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Depth control via RoTeC Control coulter

The very even and exactly controlled depth guidance of the RoTeC Control coulter is achieved via the Control 10 depth guidance disc, with a contact surface of 10 mm, or the Control 25 depth guidance option with a contact surface of 25 mm. As this depth guidance is fitted on the side of the coulter, this principle operates with more accuracy than coulter systems with a following, rigidly attached separate depth guidance roller. The depth guidance discs or rollers enable the basic setting of the sowing depth to be carried out quickly, easily and comfortably using the coulter pressure. If necessary, a notched quadrant allows for the readjustment of the sowing coulter in 3 steps.

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Coulter pressure adjustment

As all the coulters are suspended in a parallel guided frame, a central and stepless adjustment of the coulter pressure is possible. Hydraulic coulter pressure adjustment is available as an option, enabling the convenient matching of the coulter pressure from the tractor cab. With the hydraulic coulter lift, the coulters can be raised by up to 145 mm so that any pre-working of the headlands is possible without needing to run the coulters in the soil. Especially for operation in field corners the coulter lift is a useful option. It is possible, for instance, in the area behind the tractor wheels, to increase the coulter pressure by another 6 kg using additional tensioning springs.

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TwinTeC coulter – The double disc coulter for Cataya Super

Inside view of the maintenance-free TwinTeC double disc coulters

  1. Adjustable harrow: The angle of attack is adjusted according to the level of straw residue.
  2. Perfect parallelogram with the top link for central adjustment of the sowing depth from 0 to 6 cm.
  3. Centralised, 100 % independent adjustment of the placement depth and coulter pressure.
  4. TwinTeC mounted on rubber elements for shock absorption and central adaptation of the coulter pressure from 0 to 60 kg.
  5. Protective steel front plate.
  6. Spacer discs for adjustment to compensate for disc wear.
  7. Fastening of the discs in 5 locations with recessed Torx screws. No wear on the fixing discs.
  8. Maintenance-free bearings. No lubrication points on maintenance-free coulter.
  9. Double disc ∅ 340 mm, angle of 10°, row spacing 12.5 and 15 cm. 
  10. Internal scraper – optionally in a HD variant.
  11. Depth control rollers/press rollers: 50 or 65 mm wide (optional scrapers).
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Depth guidance

A parallel-guided depth guidance roller provides exact depth control behind every TwinTeC coulter, so that the sowing depth of each individual TwinTeC coulter is maintained. Thanks to the large coulter clearance of 195 mm and the connection to the depth guidance roller via the top guided roller carrier, sufficient space remains so that blockage-free operation is maintained.

Due to the sowing discs’ low angle of attack of 10°, a superb passage of material is ensured even at high forward speeds and in copious amounts of crop residues. The optionally available scraper system for the depth guidance roller provides a reliable sowing depth – even under moist and sticky conditions.

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Depth guidance roller

Two different depth guidance rollers are available. The Control 50 mm depth guidance roller has a large passage and is suited especially for heavy soils that have a good carrying ability. The Control 65 mm offers a higher carrying capacity and thus is ideal for lighter ground.

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Coulter pressure adjustment on the TwinTeC coulter

As all the coulters are suspended in a parallel guided frame, a central and stepless adjustment of the coulter pressure is possible. As an option, hydraulic coulter pressure adjustment is available allowing the comfortable matching of the coulter pressure from the tractor cab. With the hydraulic coulter lift, the coulters can be raised by up to 145 mm so that any pre-working of the headlands is possible without needing to run the coulters in the soil. Especially for operation in field corners the coulter lift is a useful option.

It is possible, for instance, in the area behind the tractor wheels, to increase the coulter pressure by another 6 kg using additional tensioning springs.

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Scrapers

Inner scrapers are fitted to the double disc coulters to ensure the smooth coulter travel. As an option, hard-faced scrapers for very cohesive, loamy soils are available.

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Exact following harrow for RoTeC Control and TwinTeC coulters

The Exact following harrow ensures the optimum coverage of the open seed furrows, perfect levelling and performs, even with large amounts of straw, blockage-free. With its individually pivoting harrow elements, the Exact harrow follows the undulations of the soil perfectly, ensuring an even seed coverage.

The harrow pressure is adjusted centrally via a lever. Alternatively, and as an option, hydraulic harrow pressure adjustment is available which, in conjunction with the hydraulic coulter pressure adjustment, works together automatically. As an option, hydraulic harrow lift can also be specified. 

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Roller harrow for RoTeC Control coulters

The Roller harrow* additionally consolidates the soil above the seed furrow resulting in the optimum germination conditions. This is especially recommended for light, dry soils when sowing spring crops or rape. An undulating surface profile that reduces erosion is the result. The roller harrow, adjustable separately from the coulter pressure, can follow the ground contours over a range of ± 100 mm.

*only for the Cataya 3000 Super

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Harrow tines on the TwinTeC coulter

As an option, every TwinTeC coulter can be equipped with a directly suspended harrow. Due to its profile, a shorter space and less lift capacity is required. Even in undulating ground, depth guidance is carried out without any problem thanks to the suspended harrow bracket.

In addition, every harrow can be adjusted as required. To compensate for wear and tear, the harrow can be readjusted in 7 steps down to a length of 150 mm. In addition, the intensity of the harrow can be set by repositioning a pin in three steps (30°, 45° and 60°).

Due to the close proximity of the harrow, it is possible to sow right up to the field margins.

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